| Q-Cms | 1 | 11 |
| Q-News | 1 | 1 |
| Q2Solutions | 1 | 1 |
| Q2W3 | 1 | 1 |
| Qa-Themes | 1 | 1 |
| Qacctv | 2 | 3 |
| Qad | 1 | 1 |
| Qaelum | 1 | 1 |
| Qantumthemes | 2 | 2 |
| Qanything | 1 | 1 |
| Qasymphony | 1 | 1 |
| Qatraq | 1 | 1 |
| Qaulcomm | 1 | 1 |
| Qbeecam | 2 | 3 |
| Qbian61 Forum-Java Project | 1 | 1 |
| Qbik | 1 | 14 |
| Qbittorrent | 1 | 6 |
| Qbnz | 1 | 2 |
| Qbs Project | 1 | 1 |
| Qcacld 2.0 Project | 1 | 1 |
| Qcm | 1 | 1 |
| Qcms | 1 | 2 |
| Qcp | 1 | 1 |
| Qcubed | 1 | 3 |
| Qd-Metro | 1 | 1 |
| Qdblog | 1 | 2 |
| Qdbm | 1 | 1 |
| Qdecoder | 1 | 1 |
| Qdecoder Project | 1 | 1 |
| Qdig | 1 | 2 |
| Qdocs | 2 | 3 |
| Qdpm | 1 | 16 |
| Qdrant | 1 | 5 |
| Qduoj | 1 | 1 |
| Qe Seo Handyman Project | 1 | 2 |
| Qeiinc | 1 | 2 |
| Qemu | 1 | 415 |
| Qgit | 1 | 1 |
| Qianqin | 1 | 1 |
| Qibosoft | 4 | 13 |
| Qiku | 1 | 1 |
| Qingscan Project | 1 | 1 |
| Qinserve Project | 1 | 1 |
| Qip | 1 | 1 |
| Qiwi | 2 | 2 |
| Qjstudios | 1 | 1 |
| Qkmc-Rk | 1 | 2 |
| Qksoft | 2 | 2 |
| Qlik | 5 | 12 |
| Qmail Project | 1 | 2 |
| Qmania | 1 | 2 |
| Qmetry | 1 | 2 |
| Qms | 1 | 1 |
| Qnap | 95 | 540 |
| Qnecms | 1 | 1 |
| Qnx | 6 | 35 |
| Qodeinteractive | 5 | 13 |
| Qoders | 1 | 1 |
| Qognify | 2 | 2 |
| Qolsys | 1 | 2 |
| Qontentone | 1 | 1 |
| Qooxdoo | 1 | 2 |
| Qoppa | 2 | 4 |
| Qore | 1 | 1 |
| Qos | 3 | 10 |
| Qpc Software | 4 | 8 |
| Qpdf Project | 1 | 19 |
| Qpr | 1 | 3 |
| Qpress Project | 1 | 1 |
| Qproje | 2 | 3 |
| Qpw.Famvanakkeren | 1 | 1 |
| Qqplayer | 1 | 1 |
| Qqq Systems Project | 1 | 4 |
| Qr Code Generator Project | 1 | 1 |
| Qr Redirector Project | 1 | 2 |
| Qrcp Project | 1 | 1 |
| Qrg Project | 1 | 1 |
| Qrio | 1 | 1 |
| Qrokes | 1 | 1 |
| Qs Project | 1 | 3 |
| Qsan | 5 | 39 |
| Qsc | 1 | 1 |
| Qsige | 1 | 7 |
| Qsix | 1 | 1 |
| Qsmart Next Project | 1 | 1 |
| Qsoft | 1 | 2 |
| Qsoft-Inc | 2 | 4 |
| Qstar | 1 | 9 |
| Qt | 5 | 57 |
| Qt-Cute | 4 | 7 |
| Qt-Dcgui | 1 | 1 |
| Qt-Users | 1 | 1 |
| Qtiworks Project | 1 | 1 |
| Qtmsoft | 1 | 1 |
| Qtnx Project | 1 | 1 |
| Qto | 1 | 4 |
| Qtparted Project | 1 | 1 |
| Qtpass | 1 | 1 |
| Qtpfsgui | 1 | 1 |
| Qtranslate Project | 1 | 1 |
